Operating systems notes
CPU Scheduling II: Real Schedulers
How production kernels blend fairness, throughput and snappy interactivity into one algorithm that runs thousands of times a second. Every section is a drawn page beside a clear written explanation, about 17 minutes in all.
- Chapter 12 of 37
- About 17 minutes
- 8 sections
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In this chapter
- From theory to practice: many goals at once
- Multilevel queue scheduling
- The multilevel feedback queue (MLFQ)
- Priority, nice values & real-time classes
- The Linux scheduler: CFS and its successor EEVDF
- Scheduling across many cores
- Fairness beyond one process: cgroups & the cloud
- Why engineers care & takeaways
Next chapters
Read the whole chapter
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